The Best Free Software of 2011

64. Sysinternals Desktops

http://technet.microsoft.com/en-us/sysinternals/cc817881
Windows
This tiny 60-KB utility from Windows Sysinternals (owned by Microsoft) is a simple way to set up four virtual desktops on your system. Use hotkeys to switch between each desktop, or click the desktop object for a running app to switch to its screen immediately.